Lubricated spinning spindle



E. F. MONNIA LUBRICATED SPINNING SPINDLE June 5, 195 1 2 Sheets-Sheet 1Filed May 27/ 1946 June 5, 1951 E. F. MONNIA LUBRICATED SPINNING SPINDLE2 Sheets-Sheet 2 Filed y 27. 1946 Timllfl NNNX I qibugew E7, 9W0

d (It to J Patented June 5, 1951 LUBRICATED SPINNING SPINDLE Eugene F.Monnia, Scranton, Pa., assignor to Selectronics, Inc., Carlisle, Pa., acorporation of Pennsylvania Application May 27, 1946, Serial No. 672,611

7 Claims.

My invention relates broadly to spinning machinery and more particularlyto a construction of sealed-in lubricated revolving spindle for spinningmachines.

One of the objects of my invention i to provide a construction ofhigh-speed spindle for spinning machines having lubrication means builtinto the spindle for insuring long and continued operation of thespindle with minimum maintenance attention.

Another object of my invention is to provide a construction oflubricated revolving spindle for spinning machines having a minimum num-Ber of parts and in which the spindle member may be removed from time totime without necessarily renewing the bearing tructure for the spindle.

Still another object of my invention is to provide a construction ofhigh speed spindle for spinning machines having sealed-in lubricant forreducing friction of the rotating parts to a minimum and insuringprecision alignment of the high speed rotating parts.

Still another object of my invention is to provide a construction ofsealed-in lubrication cartridge for revolving spindles for permanentlysupplying lubricant to revolving spindles for insuring high speedoperation with minimum friction.

Still another object of my invention is to provide a construction ofsealed-in permanently lubricated revolving spindle for installation inmultiple arrangement on high speed spinning machines, as set forth morefully in the specification hereinafter following by reference to theaccompanying drawings, in which:

Figure 1 is a vertical sectional view of the sealed-in lubricationcartridge for revolving spindle which may function as an idler roll;Fig. 2 is a vertical sectional view of the idler roll or spindleemployed in the assembly shown in Fig. 1; Fig. 3 is a vertical sectionalview through a high speed spindle of modified form and illustrating thelubricated cartridge of my invention applied thereto with certain of theparts illustrated in side elevation; Fig. 4 is a fragmentary verticalsectional view taken through the spindle mounting and lubricatedcartridge of Fig. 3; Fig. 5 is a detailed fragmentary View of the upperbearing of the high speed spindle illustrated in Figs. 3 and 4; Fig. 6is a vertical sectional view through a modified form of high speedspinning spindle employing a sealed-in lubrication cartridge and oillessbearings for the high speed spindle, certain of the parts beingillustrated in side elevation; Fig. 7 is a vertical sectional view takenthrough the form of the high speed spindle lubrication means illustratedin Fig. 6; Fig. 8 is a cross sectional view showing the lubricationcartridge associated with the high speed spindle which is shown in sideelevation for the form of my invention illustrated in Figs. 6 and '7;Fig. 9 is a cross sectional View through the stepped support of thelower seal for the spindle illustrated in Figs. 6 and 7; Fig. 10 is across sectional view through the upper bearing structure of the highspeed spindle in the form of my invention shown in Figs. 6 and '7; andFig. 11 is a detailed View illustrating the construction of journalingmean for the high speed spindle in the form of my invention shown inFigs. 6 and 7.

In the high speed operation of spinning spindles it is often necessaryto drive such spindles at rates of speed of the order of 10,000 to15,000 R. P. M. Unless the spindles are journaled with great precision,tendency of vibration i inherent and frictional wear is often excessive.I have developed a spindle for high speed operation of spinning machinesin which wear due to friction is reduced to a minimum and in which themoving parts are journaled with such precision that vibration is reducedto a minimum. I provide a construction of sealedin lubrication cartridgefor spindles in which the moving parts are continuously supplied withlubricant. The sealed-in lubrication cartridge may be associated withthe ball bearing construction for facilitating high speed operation ofthe spindle with minimum loss due to friction.

Referring to the drawings in detail, reference character I designates asupport which may be carried in a bracket extending from the bed of thespinning machine. The support is provided with an internallyscrew-threaded bore 2 into which the vertically extending shaft 3 isscrew-threaded. The shaft 3 is provided with a frusto-conical end 4which enters a correspondingly shaped recess in an oilless bearingmember 5. A spacing member 6 surrounds the shaft 3 and issupported bythe support I. Immediately above the spacing member 6 thesealed-inlubrication cartridge 1 is arranged.

The sealed-in lubrication cartridge 1 comprises a cyilndrical case 8closed at one end as shown at 9, and open at the opposite end asrepresented at I0. The open end In is provided with an annular recess llarranged interiorly thereof which receives the outer race [2 for theballs I4. An inner race [5 fits over the shaft 3 and provides a memberaround which the outer race i2 is free to revolve. A baffle member Itfits over the shaft 3 and extend annularly with respect to the races l2and I5 and balls M. The case 8 is closed by a shield member ll which isprovided with a skirt is which snugly embraces the exterior wall of thecase 8. The central portion of the shield llfits snugly about the shaftr3 andgprovides a seal in co-action with the inner race l5 for the fluidlubricant I9 which is contained within the case B.

The upper end 9 of the case 8 ;zcarries asshaft member 20. The end 9 ofthe case 8 and the end of the shaft 26 are recessed at"2l to'receive theoilless bearing 5. Y The oilless'bearing' 5; whichis recessed at 22,supports the weight which may be imposed upon the shaft memberiifl{during high speed rotation of the spindle. The shaft member 26 may bean idler or other -rotative member used in high speed spinningmachinery. The sealed-in lubricant In continuously oils the balls'lfibetween the-racesJZ and 1 5, reducing friction to a minimum.

In Fig. 2 I have 1 shown the cartridge 1 re- -moved from the shaftfi.Cartridge! is extremely simple in construction in that the case 8 may bereadily machinedfrom solid stock by which the idler Zilis-integrallyrelated to the case- 8 and the socket recess 2| formedtherein to receivethe oilless bearin 5.

In -Figs'B, 4, and 5, I have illustrated the lubrication cartridge of'my invention as applied to-ahigh speed spindle. A su'pportor bracket-23 is arranged for mounting =on -the bed of the spinning machine and isprovided with a vertically extending screw-threaded bore 24 throughwhich the screw-threaded end of -the--shaftt-25 extends and ismaintainedin -a selected position *by locknut 25. "The screw-threaded shaft 25 maybe adjusted by turning--the: er1d 25dwitha suitable tool engagingtheslot 251) in the endof 'the screw-threadedshaft225 whichis: surrounded'by a ballraceof the'kind disclosedin Fig. 1, including anannular outerrace: I2. The:lubrioationcartridgeis illustratedatQB including acylindrical casing 12! terminating in the circular fiange 28 whichisrecessed at 29 to receive the -outer race-l2. The-outer race l-2-issealed-in position in the end-of the cylindricalcase 21 by capping plate3B-having an annular-skirt 30a which fits snugly over the reduced endsection 28a of the ilange 28 of case 21. :The screw- -threaded shaft 25carries baflie member t6 arranged in a-mannersimilar to thecorrespondingly-numbered bafile in thestructure shown in 'Fig. -1. '-Theupper end ofthe screw-threaded shaft -25-is tapered to-aconical termiusas represented at 3i -and-enters a correspondingly shaped recess 32a inoilless bearing-'32. The oillessbearing32 is attachedto-the-end ofreduced section 3311 of the spindle 33. Spindle -33 extends 'throughtheend 2la'of the cylindricalcase'il forming a revolving unit therewith.

Theinterior of the cylindrical case '21- isfilled with lubricantrepresentedat 34 before the capwherein an oilless sleeve bearing issubstituted for the inner and outer races with-balls therebetween asillustrated in the forms of my inven- "tion, shown in Figs. 1-5.

rReferring-torFigs. 6-11, reference character I designates the supportor bracket of the type illustrated in Flg..=1, -which is provided withthe -'inter nallyscrewethreaded bore 2, into which the verticallyextending shaft 3 is screw-threaded.

.{A .st epped .annu-lar member 36 surrounds the sorew threadedvertically extending shaft 3 and coactsnvlth the flange 31a of thecylindrical case 31 for sealing lubricant 38 within the lubricaztion:Ca-rti'idge. Ihe vertically extending :shaft -3 :carries a cylindricalbushingr39: thereon: which serves as asbearin surface a1'ound:which;.theinterior of the cylindrical case'i3'lrrevolves. The cylindricalbushing39 constitutes a sleevebearin having a lOWGlfEIId. providedwithanannular :groove orrecess :40 intoxwhicnthesannular skirt lla ofcappingmemberi ll projects. ;The;cap- .-ping members-i l-..surrounds.the shaft/.13; andserves as an engaging means which-rseatsyinto-the an-.nulaiwrecess 35a of-member;:36. .Theicylindrical rbushingfll} serves,as; a bearing whichsseatsyinto the annular recessi36b in.1themember"36. The spindle: 331s; arrangedinia manner similarv to :thearrangement I explained I in connection .with Figs. a3+i5 in that: the;spindle-extendsthrough the end 3112 of the cylindrical case 31 and issecured to the; oilless bearing-3,2. ;Tlt1e:oilless::bearingfv 32Lhas:the :recess 32a ithereof ijournaled 1011 'the-rconical .shapedrendQfsthe: shaft-.3. The cylindricalcase r31 is filled with: lubricant; 38before-introduction .of thecylindrical:bearing::39. -After;assembly :ofthe bearing structure;by:introduction of cylincdrical bushing,:39througlrthe' end of; the cylinder :3l,ttheisteppedtannulanmember-thisaligned and applied against zthe :flat .iannular v'face 'of the flange.31a of -casei31, 'andby-reason-of: the close :machined tolerances,maintainsav fiuid tight seal for the sealed-in lubricant 38 withintheacylindrical .case.3'|.

"'Theseveral formsuof idlershaftand 'high speed 's.pindle.:of;-my.invention have proven'highlyrprac- -tical-;and-successful in operation.I have described :my invention in certain :;preferred embodimentsbutlrealizethat modifications. in detail may be madegand Icdesire-that it beunder- ;stoodathat nolimitations upon my invention-are intended otherthan'may be imposed; by .thescope .of the; appended claims.

What;I -;claim asnew and desire ,tosecureby ,LetterslPatent' ofthe:United States is as follows:

.1. A lubricated revolvingmember comprising =asupport, a pintleextending from said support, -a cartridge surrounding said pintlein'spaced relation thereto, .a spindlemember carriedby said cartridgeandrevolving therewithwith respect to saidpintle, apair of bearingmembers disposed within said cartridge-at spacedpositions with respectto said pintle one of said bearing members being disposed coincidentlywith thelinear axis ofsaid pintleand the other of said bearing memberssurrounding the linear axis of said pintle, the interior of saidcartridge forming a reservoir for fluid lubricant withinsaid cartridge'for continuously lubricating both: of-said bearing disposed adjacentthe opposite interior end of 7 said cartridge, a support, a pintlecarried by said support and extending into said cartridge and journaledwith respect thereto by said bearing members, said first mentionedbearing member being disposed coincidently with the linear axis of saidpintle and said second bearing member extending in a circular patharound the linear axis of said pintle, the interior of said cartridgeforming a reservoir for fluid lubricant within said cartridge forcontinuously lubricating said'pintle and said bearing members, and meansfor maintaining said reservoir for lubricant within said cartridgefluid-tight for operating said bearing members in a confined body offluid lubricant.

3. A lubricated spindle comprising a cylindrical case, a spindleprojecting from one end of said case, a support, a pintle extending fromsaid support to a position interiorly of said case, said pintleincluding a cylindrical portion terminating in a frusto conical endportion, a pair of bearing members disposed between said case and saidpintle, one of said bearing members comprising a sleeve memberinterposed between the cylindrical portion of said pintle and theinterior wall of said case, and the other of said bearing memberscomprising a socket for receiving the frustoconical end portion of saidpintle, the interior of said case forming a reservoir for fluidlubricant within said case for continuously lubricating both of saidbearing members, said first mentioned bearing member concentricallysurrounding said pintle and said second mentioned bearing member beingaxially aligned with said pintle, and means for sealing said case formaintaining the reservoir for lubricant fluid-tight.

4. A lubricated spindle comprising a revolvable case, a spindleprojecting from one end of said case, an oilless bearing disposedinteriorly in the said end of said case opposite the projection of saidspindle therefrom, a support, a pintle carried by said support andprojecting into said case and engaging the oilless bearing therein, a

bearing surrounding said pintle and forming a journal with respect tosaid case in spaced relation to said oilless bearing, said oillessbearing being disposed coincidently with the axis of said pintle andsaid bearing surrounding said pintle extending in a circular path aroundsaid pintle and spaced-from the axis of said pintle for a distanceequivalent to the radius of the interior of said case, the interior ofsaid case forming a reservoir for fluid lubricant within said case forcontinuously lubricating both said oilless bearing and said journal, andmeans for maintaining the reservoir for lubricant fluid-tight.

5. A lubricated spindle comprising a cylindrical case, a spindleprojecting from one end of said cylindrical case, an oilless bearingdisposed interiorly of one end of said case adjacent the connection ofsaid spindle therewith, a support, a pintle carried by said support andextending into said case, said pintle having a terminus engaging saidoilless bearing, a sleeve-like bearing surrounding said pintle andextending into the other end of said case, said oilless bearing beingdisposed coincidently with the axis of said pintle and said bearingsurrounding said pintle extending in a circular path around said pintleand spaced from the axis of said pintle for a distance equivalent to theradius of the interior of said case, and a stepped annular memberinterposed between said support and said last-mentioned bearing and saidcase and engaging the end of last mentioned bearing and the end of saidcase, lubricant within said case for continuously lubricating both saidbearings.

6. A lubricated spindle comprising a, support, a pintle extending fromsaid support and having a frusto-conical terminus thereon, a case, saidpintle projecting through one end of said case, an oilless bearingdisposed interiorly of the end of said case and secured to the end ofsaid spindle, said oilless bearing having a central frusto-conicalrecess therein aligned with the frusto-conical terminus on said pintle,a bearing member surrounding said pintle and establishing revolvableconnection with the opposite end of said case, said oilless bearingbeing disposed coincidently with the axis of said pintle and saidbearing surrounding said pintle extending in a circular path around saidpintle and spaced from the axis of said pintle for a distance equivalentto the radius of the interior of said case, the interior of said caseforming a reservoir for fluid lubricant within said case forcontinuously lubricating both of said bearings, and a closure for saidcase for continuously maintaining the reservoir for fluid lubricantfluid-tight.

'7. A lubricated spindle comprising a support, a pintle extending fromsaid support and having a frusto-conical terminus thereon, a case, saidpintle projecting through one end of said case, an oilless bearingdisposed interiorly of the end of said case and connected with the endof said spindle, said oilless bearing having a central frusto-conicalrecess therein aligned with the frusto-conical terminus on said pintle,a bearing member surrounding said pintle and eflecting revolvableconnection with the interior side walls of the lower extremity of saidcase, said oilless bearing being disposed coincidently with the axis ofsaid pintle and said bearing surrounding said pintle extending in acircular path around said pintle and spaced from the axis of said pintlefor a distance equivalent to the radius of the interior of said case,the interior of said case forming a reservoir within said case forcontinuously lubricating both of said bearings, a flat annular flange onthe lower extremity of said case, an annular plate mounted on saidsupport and surrounding said pintle, said annular plate having amultiplicity of concentric recesses therein of successively differentdiameter, the flange of said case establishing contacting relation withsaid plate and said last mentioned bearing member extending into one ofthe recesses in said plate, said last mentioned bearing member includingan annular groove therein and a capping member surrounding said pintleand extending into another of the recesses in said plate, said cappingmember having a skirt projecting into the annular groove in said lastmentioned bearing member.

EUGENE F. MONNIA.

(References on following page) 7 EREEERENGESeGITED "The followingreferences are 'of record in the 'fileof 'this patent:

' UNITED STATES TPATENTS 1 Number :Name Date #528,936 Garcelon Nov. 13,1894 '7 18*,-34,9 ;H,i11 Jan. 13, 1903 Number Number France -'Oct. 12,1936

